Hollow-stem lamp



(ModeL) D. O. RIPLEY.

HOLLOW STEM LAMP. N0. Z49;676. Patented Nov. 15,1881.

1 i 5 4 I Q t A I 1 5 a n Nrren STATES PATENT EPIC E,

HOLLOW-STEM LAM P.

SPECIFICATION forming part of Letters Patent No. 249,676, dated November15, 1881,

Application filed July 5, 1881. (Model) To all whom it may concern:

Be it known that I, DANIEL O. RIPLEY, of Pittsburg, inthe county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Hollow-Stem Lamps; and I do'hereby declare the followingto be a full, clear, and exact description thereof.

My invention relates to the construction of ornamented or decoratedpedestals for lamps and like articles.

Heretofore, so far as I am aware, the column, stem, or pedestal of thisclass of decorated ware has been formed independently or separately fromthe foot or base, and in the shape of a hollow cylinder, which,afterhaving been decorated or ornamented upon its inner surface, hasbeen united to bowl and foot or base by metal collars, center rods orbolts, and like devices, the foot or base piece being usually of metal,though sometimes ofother material. The objections to such a constructionare the cost of production, the lack of stability of the union betweenthe parts, and the number of joints which admit fluids to the hollowstem, resulting in the injury of the decorations. I

The object of my invention is to overcome these objections; and to thisend it consists in forming the column or stem of substantially uniformthickness throughout to admit of the application of interior decorationand the display thereof, and integral with the foot or base, whichlatter is closed by a disk that may be cemented or otherwise secured, soas to hermetically close the cavity and protect the ornamentation, allas will hereinafter more fully appear.

To enable others skilled in the art to make and use my invention, I willnow describe it by reference to the accompanying drawings, in

its being pressed; has walls of uniform, or nearly uniform, thicknessthroughout, to admit of a proper display of the decoration, whichisapplied to the inner surface of the pedestal, and is formed integralwith the base or foot Z), and with a peg, c, for the attachment of thelamp-bowl d. A shoulder or seat, 8, is usually formed on the interior ofthe base or foot for the reception of a disk or plate which closes thebottom of the pedestal.

It indicates the bottom disk for closing the cavity of the stem andfoot, which, when in position, rests against the shoulder or seat 8, andis secured by cement or in other suitable manner. The stem or pedestaland foot are formed in one in suitable molds e by means of the plunger9, being pressed from the bottom.

After being properly annealed, the pedestal a isdecorated on the insideby any of the processes of decoration known in the arts. The bowl (1 isattached to the pedestal by means of a ferrule or otherwise, or by beingblown upon the pedestal-u in the process of manufacture, and the openlower end of the pedestal a is closed by means of a suitable disk, h,which may be secured by cementz', or by means of a bolt extending downthrough the center of the pedestal, or in any other suitable manner;Where the rod or bolt fastening is adopted it would be well to use apacking or cement to exclude moisture and secure a tight joint betweenthe disk and pedestal. The purpose of this is to close the center of thehollow pedestal, so that the decoration therein shall not be destroyedor mutilated or in any way hurt or affected by the use or cleaning ofthe lamp. Hence I prefer to make the joint between the disk h and thesides of the pedestal watertight.

The-advantages of this construction are. that the pedestal is easily andquickly made, that it is more easily decorated, that the lamp is cheaperand equally as handsome as those heretofore made, in which the pedestalwas separate from the foot, and that the device or disk for closing thelower end of the pedestal is easily and quickly put in place.

I am aware that a hollow stem and foot or base formed in a single pieceis not new, and do not claim the same, for as heretofore constructed thestem or pedestal was not adapted to display internal decoration, and thecavity was not closed by a disk to protect any ornamentation which mighthave been applied thereto. Therefore What I claim as my invention, anddesire to secure by Letters Patent, is

A transparent pedestal and base or foot formed in a single piece, thewalls of the pedestal being of substantially uniform thicknessthroughout, and adapted to display internal

